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index.html
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<!DOCTYPE html>
<html lang="zh-TW">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>M3U8 下載工具</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue-virtual-scroller.css">
<script>
// 自動注入跨域代碼
fetch = new Proxy(fetch, {
apply(target, that, args) {
const [url, options = {}] = args;
options.credentials = 'include';
options.mode = 'cors';
return target.apply(that, [url, options]);
}
});
// 注入 XMLHttpRequest 跨域支持
XMLHttpRequest.prototype.setRequestHeader = new Proxy(XMLHttpRequest.prototype.setRequestHeader, {
apply(target, that, args) {
const [header, value] = args;
if (header === 'Origin') return;
return target.apply(that, args);
}
});
// 修改 open 方法
XMLHttpRequest.prototype.open = new Proxy(XMLHttpRequest.prototype.open, {
apply(target, that, args) {
const [method, url, async = true, user, password] = args;
that.withCredentials = true;
return target.apply(that, [method, url, async, user, password]);
}
});
</script>
<style>
[v-cloak] {
display: none;
}
body {
margin: 0;
padding: 20px;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.container {
max-width: 1200px;
margin: 0 auto;
}
.header {
text-align: center;
margin-bottom: 30px;
}
.input-group {
display: flex;
gap: 10px;
margin-bottom: 20px;
}
.input-group input {
flex: 1;
padding: 10px;
font-size: 16px;
border: 1px solid #ddd;
border-radius: 4px;
}
.range-input {
display: flex;
gap: 10px;
margin-bottom: 20px;
align-items: center;
}
.range-input input {
width: 100px;
padding: 10px;
font-size: 16px;
border: 1px solid #ddd;
border-radius: 4px;
}
.btn {
padding: 10px 20px;
font-size: 16px;
color: white;
background-color: #3D8AC7;
border: none;
border-radius: 4px;
cursor: pointer;
}
.btn:hover {
opacity: 0.9;
}
.btn:disabled {
background-color: #ccc;
cursor: not-allowed;
}
.progress-container {
margin-top: 20px;
}
.progress-info {
margin-bottom: 10px;
color: #666;
}
.segments {
display: flex;
flex-wrap: wrap;
gap: 5px;
margin-top: 10px;
}
.segment {
width: 40px;
height: 40px;
display: flex;
align-items: center;
justify-content: center;
background-color: #eee;
border-radius: 4px;
color: #666;
}
.segment.finished {
background-color: #4CAF50;
color: white;
}
.segment.error {
background-color: #f44336;
color: white;
cursor: pointer;
}
.virtual-scroller {
height: 300px;
border: 1px solid #eee;
border-radius: 4px;
margin-top: 20px;
}
.download-item {
padding: 10px;
border-bottom: 1px solid #eee;
}
.progress-bar {
height: 20px;
background-color: #f5f5f5;
border-radius: 4px;
overflow: hidden;
margin-top: 5px;
}
.progress-bar-inner {
height: 100%;
background-color: #3D8AC7;
transition: width 0.3s ease;
color: white;
text-align: center;
line-height: 20px;
font-size: 12px;
}
.cross-domain {
margin: 20px 0;
padding: 20px;
background-color: #f8f9fa;
border-radius: 4px;
}
</style>
</head>
<body>
<div id="app" v-cloak>
<div class="container">
<div class="header">
<h1>{{ tips }}</h1>
</div>
<div class="input-group">
<input type="text" v-model="url" :disabled="downloading" placeholder="請輸入 M3U8 網址">
<button class="btn" @click="getM3U8" :disabled="downloading || !url">下載原格式</button>
<button class="btn" @click="getMP4" :disabled="downloading || !url">下載 MP4</button>
<button class="btn" v-if="downloading" @click="togglePause">
{{ isPause ? '繼續' : '暫停' }}
</button>
</div>
<div class="cross-domain">
<button class="btn" @click="copyCode">複製跨域代碼</button>
<p style="margin-top: 10px; color: #666;">
如果遇到跨域問題，請將此代碼複製並貼到視頻頁面的瀏覽器控制台中執行。
</p>
</div>
<div class="range-input" v-if="!downloading">
<span>下載範圍：</span>
<input type="number" v-model.number="startSegment" placeholder="起始片段" min="1">
<span>至</span>
<input type="number" v-model.number="endSegment" placeholder="結束片段" min="1">
<span>（可選）</span>
</div>
<div class="progress-container" v-if="finishList.length > 0">
<div class="progress-info">
<div>總片段：{{ tsUrlList.length }}</div>
<div>已完成：{{ finishNum }}</div>
<div>錯誤：{{ errorNum }}</div>
<div>進度：{{ (finishNum / tsUrlList.length * 100).toFixed(2) }}%</div>
</div>
<div class="segments">
<div v-for="(item, index) in finishList"
:key="index"
class="segment"
:class="{
finished: item.status === 'finish',
error: item.status === 'error'
}"
@click="retry(index)">
{{ index + 1 }}
</div>
</div>
<div class="virtual-scroller" v-if="downloadList.length > 0">
<RecycleScroller
class="scroller"
:items="downloadList"
:item-size="50"
key-field="id">
<template v-slot="{ item }">
<div class="download-item">
<div>{{ item.title }}</div>
<div class="progress-bar">
<div class="progress-bar-inner"
:style="{ width: item.progress + '%' }">
{{ item.progress }}%
</div>
</div>
</div>
</template>
</RecycleScroller>
</div>
</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue-virtual-scroller.min.js"></script>
<script src="./aes-decryptor.js"></script>
<script src="./mux-mp4.js"></script>
<script>
Vue.use(window.VueVirtualScroller);
new Vue({
el: '#app',
data() {
return {
url: '',
tips: 'M3U8 下載工具',
isPause: false,
isGetMP4: false,
durationSecond: 0,
downloading: false,
beginTime: '',
errorNum: 0,
finishNum: 0,
downloadIndex: 0,
finishList: [],
tsUrlList: [],
mediaFileList: [],
downloadList: [],
startSegment: null,
endSegment: null,
aesConf: {
method: '',
uri: '',
iv: '',
key: '',
decryptor: null,
stringToBuffer: function(str) {
return new TextEncoder().encode(str)
},
},
chunkSize: 1024 * 1024 * 2,
maxConcurrentDownloads: 3,
downloadQueue: [],
activeDownloads: 0,
mediaCache: new Map(),
cleanupInterval: null
}
},
created() {
this.getSource();
window.addEventListener('keyup', this.onKeyup);
this.cleanupInterval = setInterval(this.cleanupResources, 30000);
},
beforeDestroy() {
window.removeEventListener('keyup', this.onKeyup);
clearInterval(this.cleanupInterval);
this.cleanupResources();
},
methods: {
getSource() {
const urlParams = new URLSearchParams(window.location.search);
const source = urlParams.get('source');
if (source) {
this.url = source;
}
},
onKeyup(event) {
if (event.key === 'Enter') {
this.getM3U8();
}
},
getMP4() {
this.isGetMP4 = true;
this.getM3U8();
},
getM3U8() {
if (!this.url) {
alert('請輸入 M3U8 網址');
return;
}
if (this.url.toLowerCase().indexOf('.m3u8') === -1) {
alert('網址格式錯誤，請確認是否為 M3U8 網址');
return;
}
if (this.downloading) {
alert('下載中，請等待目前的下載完成');
return;
}
this.resetState();
this.downloading = true;
this.tips = 'M3U8 檔案下載中...';
this.beginTime = new Date();
fetch(this.url)
.then(response => response.text())
.then(this.processM3U8)
.catch(error => {
console.error('下載失敗:', error);
this.alertError('下載失敗，請確認網址是否正確');
});
},
processM3U8(m3u8Content) {
const lines = m3u8Content.split('\n');
for (const line of lines) {
if (line.toLowerCase().indexOf('.ts') > -1) {
const tsUrl = this.applyURL(line, this.url);
this.tsUrlList.push(tsUrl);
this.finishList.push({
title: line,
status: ''
});
} else if (this.isGetMP4 && line.toUpperCase().indexOf('#EXTINF:') > -1) {
this.durationSecond += parseFloat(line.split('#EXTINF:')[1]);
}
}
// 處理下載範圍
if (this.startSegment && this.endSegment) {
const start = Math.max(0, this.startSegment - 1);
const end = Math.min(this.tsUrlList.length, this.endSegment);
this.tsUrlList = this.tsUrlList.slice(start, end);
this.finishList = this.finishList.slice(start, end);
}
if (m3u8Content.indexOf('#EXT-X-KEY') > -1) {
this.processAESConfig(m3u8Content);
} else if (this.tsUrlList.length > 0) {
this.startDownload();
} else {
this.alertError('沒有找到可下載的影片片段');
}
},
processAESConfig(m3u8Content) {
this.aesConf.method = (m3u8Content.match(/(.*METHOD=([^,\s]+))/) || ['', '', ''])[2];
this.aesConf.uri = (m3u8Content.match(/(.*URI="([^"]+))"/) || ['', '', ''])[2];
this.aesConf.iv = (m3u8Content.match(/(.*IV=([^,\s]+))/) || ['', '', ''])[2];
this.aesConf.iv = this.aesConf.iv ? this.aesConf.stringToBuffer(this.aesConf.iv) : '';
this.aesConf.uri = this.applyURL(this.aesConf.uri, this.url);
fetch(this.aesConf.uri)
.then(response => response.arrayBuffer())
.then(key => {
this.aesConf.key = key;
this.aesConf.decryptor = new AESDecryptor();
this.aesConf.decryptor.constructor();
this.aesConf.decryptor.expandKey(this.aesConf.key);
this.startDownload();
})
.catch(error => {
console.error('AES 金鑰下載失敗:', error);
this.alertError('AES 金鑰下載失敗');
});
},
startDownload() {
this.downloadQueue = [...Array(this.tsUrlList.length).keys()];
this.processDownloadQueue();
},
async processDownloadQueue() {
const processChunk = async () => {
if (this.downloadQueue.length === 0 || this.isPause) return;
while (this.downloadQueue.length > 0 &&
this.activeDownloads < this.maxConcurrentDownloads &&
!this.isPause) {
const index = this.downloadQueue.shift();
this.activeDownloads++;
try {
await this.downloadTsChunk(index);
} catch (error) {
console.error('下載錯誤:', error);
this.errorNum++;
this.finishList[index].status = 'error';
} finally {
this.activeDownloads--;
}
}
if (this.downloadQueue.length > 0 && !this.isPause) {
setTimeout(processChunk, 100);
}
};
await processChunk();
},
async downloadTsChunk(index) {
if (!this.finishList[index] || this.finishList[index].status !== '') {
return;
}
const response = await fetch(this.tsUrlList[index]);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const arrayBuffer = await response.arrayBuffer();
await this.processTsChunk(arrayBuffer, index);
},
async processTsChunk(arrayBuffer, index) {
try {
const data = this.aesConf.uri ?
this.aesConf.decryptor.decrypt(
arrayBuffer,
0,
this.aesConf.iv || new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, index]),
true
) : arrayBuffer;
let processedData;
if (this.isGetMP4) {
processedData = await this.convertToMP4(data, index);
} else {
processedData = data;
}
this.mediaCache.set(index, {
data: processedData,
status: 'finish'
});
this.finishList[index].status = 'finish';
this.finishNum++;
this.updateProgress(index, 100);
if (this.finishNum === this.tsUrlList.length) {
await this.mergeAndDownload();
}
} catch (error) {
console.error('處理 TS 片段時發生錯誤:', error);
throw error;
}
},
async convertToMP4(data, index) {
return new Promise((resolve) => {
const transmuxer = new muxjs.Transmuxer({
keepOriginalTimestamps: true,
duration: parseInt(this.durationSecond),
});
transmuxer.on('data', segment => {
if (index === 0) {
const data = new Uint8Array(segment.initSegment.byteLength + segment.data.byteLength);
data.set(segment.initSegment, 0);
data.set(segment.data, segment.initSegment.byteLength);
resolve(data.buffer);
} else {
resolve(segment.data);
}
});
transmuxer.push(new Uint8Array(data));
transmuxer.flush();
});
},
updateProgress(index, percent) {
if (!this.downloadList[index]) {
this.$set(this.downloadList, index, {
id: index,
title: `片段 ${index + 1}`,
progress: 0
});
}
this.$set(this.downloadList[index], 'progress', percent.toFixed(2));
},
async mergeAndDownload() {
this.tips = '正在合併檔案...';
const sortedData = Array.from(this.mediaCache.entries())
.sort(([a], [b]) => a - b)
.map(([_, value]) => value.data);
try {
const blob = new Blob(sortedData, {
type: this.isGetMP4 ? 'video/mp4' : 'video/MP2T'
});
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `video_${this.formatTime(this.beginTime)}${this.isGetMP4 ? '.mp4' : '.ts'}`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
this.mediaCache.clear();
this.downloading = false;
this.tips = 'M3U8 下載工具';
} catch (error) {
console.error('合併檔案時發生錯誤:', error);
this.alertError('合併檔案時發生錯誤');
}
},
formatTime(date) {
return date.toISOString().slice(0, 19).replace(/[-:]/g, '');
},
applyURL(targetURL, baseURL) {
try {
return new URL(targetURL, baseURL).href;
} catch {
return targetURL;
}
},
togglePause() {
this.isPause = !this.isPause;
if (!this.isPause) {
this.processDownloadQueue();
}
},
retry(index) {
if (this.finishList[index].status === 'error') {
this.finishList[index].status = '';
this.downloadQueue.push(index);
this.errorNum--;
this.processDownloadQueue();
}
},
resetState() {
this.tsUrlList = [];
this.finishList = [];
this.downloadList = [];
this.mediaFileList = [];
this.mediaCache.clear();
this.errorNum = 0;
this.finishNum = 0;
this.downloadIndex = 0;
this.durationSecond = 0;
this.downloadQueue = [];
this.activeDownloads = 0;
},
cleanupResources() {
for (let [key, value] of this.mediaCache) {
if (value.status === 'finish') {
this.mediaCache.delete(key);
}
}
},
alertError(message) {
alert(message);
this.downloading = false;
this.tips = 'M3U8 下載工具';
},
copyCode() {
const code = `
// 修改 fetch
fetch = new Proxy(fetch, {
apply(target, that, args) {
const [url, options = {}] = args;
options.credentials = 'include';
options.mode = 'cors';
return target.apply(that, [url, options]);
}
});
// 修改 XMLHttpRequest
XMLHttpRequest.prototype.setRequestHeader = new Proxy(XMLHttpRequest.prototype.setRequestHeader, {
apply(target, that, args) {
const [header, value] = args;
if (header === 'Origin') return;
return target.apply(that, args);
}
});
XMLHttpRequest.prototype.open = new Proxy(XMLHttpRequest.prototype.open, {
apply(target, that, args) {
const [method, url, async = true, user, password] = args;
that.withCredentials = true;
return target.apply(that, [method, url, async, user, password]);
}
});
`;
const textarea = document.createElement('textarea');
textarea.value = code;
document.body.appendChild(textarea);
textarea.select();
document.execCommand('copy');
document.body.removeChild(textarea);
alert('跨域代碼已複製！請將其貼到視頻頁面的瀏覽器控制台中執行。');
}
}
});
</script>
</body>
</html>